bentley



(No Model.) s She etsSheet 1.

A. E. BENTLEY. MAGHINB FOR MAKING METAL GANISTER'S.

No. 478,389. Patented July 5, 1892.

3 Shets-Sheet 2.

(No Model.)

A.B.BENTLE'Y.- MACHINE FOR MAKING METAL UANISTERS;

No. 478,389. Patented July 5, 1892.

3 Sheets-Sheet 3.

(No Model.) v

A. E. BENTLEY. MACHINE FOR MAKING METAL GANISTERS. N0;

Patented July 5,1892.

FIG:4

FIG:5.

UNrrE ST TES- T'ATPENT EFICE.

ALBERT ED. BENTLEY, OF MANCHESTER, ENGLAND.

, MACHINE FOR MAKING METAL CANISTE RS.

SPECIFICATION forming part of Letters Patent 1\To .478,389, dated my 5, 1892. Application filed January 13, 1892. $erial No. 417,907. (No model.)

' to re of Tin or other Metal Canisters, of which the following is a specification.

This invention relates to the'construction of apparatus for the manufacture of air and liquid tight metal canisters of a cylindrical form, the body and ends being united with a double-seamed joint without the use of solder.

The nature of my invention and the manner in which the same is to be performed or carried into practical effect will be readily understood on reference to the drawings hereunto annexed and'the following explanation thereof.

Figure 1 of the drawings is an elevation, and Fig. 2 a vertical section on line 2 2 of Fig. 1, of my improved apparatus for uniting the ends and cylindrical body of metal canisters by double-seaming, the three necessary operationsviz.,- first, throwing off or flanging the edge of the body; second, paning down the edge of the circular end over such flange, and, third, double seaming the jointbeing all performed by a single machine. Figs. 3, 4, 5, 6, 7, and 8 are detached views, hereinafter more particularly referred to, of separate parts of the apparatus.

Referring to Figs. 1 and 2 of the drawings, the general arrangement of the machine is similar to that of a lathe, consisting of two end frames at, supporting a bed I), on which are fixed the head-stocks c 0', each carrying a spindle d d, driven by means of an endless strap passing round a driving-pulley 6. One of these spindles d" (the left-hand'one on the drawings) is provided with a key or feather d sliding in a groove through the boss of the pulley e, so that although the latter drives it the spindle can slide horizontally through the head-stock. The outer spindle cl is fixed so far as horizontal movement is concerned.

On the inner end of each spindleis screwed or otherwise fixed a head or block f f The one f on the following spindle d is in the case of a single machine for making canisters with loose lids (as that shown on the drawing, for example) a plain block or face plate with a central projection f of such a diameter as will just'fit into the open end of the cylindrical body of the canister. The construction of the other headf will be best understood on reference to the full-size face View, Fig. 3, and section, Fig. 4. In this case in addition to the projection f there isa central boss f and a loose cap f, the outside of which is of the same diameter as the projection f that is, equal to the inner diameter of the body of the canister and its inner diameter is larger than that of the central boss f This is connected to the main platefof the head by three screws f the holes in the cap f being larger than the screws, so that the cap f can be moved thereon eccentrically in any direction to a limited extent.

Referring back to Figs. 1 and 2, it will be seen that the machine is provided with three arms g. g 9 The lever'g is connected by a link It to the weighted hand-lever h. The lever g is connected to the handle 7L2, and the lever g is connected to the lever g by means of a link 70 so that the movement of the lever it raises or depresses both of the levers g and 9 together. These levers carry, respectively, at their ends the three circular tools or runners i, 1?, and i The front tool a" has a plain cylindrical edge (see detached view, Fig.5) and is for. throwing off or flanging the edge of the cylindrical body g. The latter is placed on .the projection f of the plain head f, (see Fig. 1,) and by placing the foot on the treadle 1 this is advanced until the, other edge of the body passes onto the loose cap f and the projection f of the working head f, which, as before stated, are both of the same diameter and are at this time concentric. The spindles cland d. are then set in motion and the handle h is depressed, pressing the plain toolor runner z" against the edge of the cylindrical body g, which pushes the loose cap backward, and thus throws off or flanges the edge of the body all round, as shown at Figs. 3, 4, and 5, as the cylinder revolves. The foot is then removed from the treadle Z, and the springm draws the following spindle back through its intermediate connections. A circular end with a grooved punch round its edge in the usual form is now fitted onto the thrown or flanged end of the cylindrical body, which is again placed in the machine and pressed forward by the treadle 1 until the recessed end fits against the cap J. The spindles are again setin motion and thehandle 72.2 is raised, bringing the tool or runner i into action, which panes the edge of the circular end over the flange. (See Fig. 6.) The handle it is then depressed, bringing the runner i into action, which bends over the doubled flanges, making what is known as a double seam. I prefer to make the runner 1 in two parts, so that the width of the groove can be altered according to the thickness of the metal.

I may here observe that the machine shown on Figs. 1 and 2 is a single machine for making canisters with loose lids; but the same machine may be used for making doubleended canisters by using a working head with loose cap on each spindle and having a second set of tools or runners fixed on the same shaft so as to make a double-seam joint at each endof the cylindrical body at one operation.

Fig. 8 is a section of a slight modification of the working head for throwing off the flange wherein a loose ring it is substituted for the loose cap f and is held in place by a front plate 0, fixed on by screws 1). This form of working head is also adapted to be used in the ordinary crimping-machine for throwing oil": the edge or flange of the body for doubleseaming in a separate machine, and it can be adapted, also, for oval or oblong canisters by making the head of a corresponding shape.

I claim as my invention--- 1. In a seaming-machine, the combination of a working head adapted to fit into the open end of the cylindrical body of the canister, the said head being provided with a loose cap or ring capable of an eccentric motion, with a tool 'L', as and for the purpose set forth.

2. In a seaming-machine, the combination of a working head adapted to fit into the open end of the cylindrical body of the canister, the said head provided with a loose cap or ring capable of an eccentric motion, with a plain tool 1', a paning-tool t and a doubleseaming tool i as and for the purposes set forth.

. 3. In a seaining maehine, the combination of two rotary spindles, each carrying at one end a head adapted to fit into the open ends of the cylindrical body of the canister, with tools t', F, and i set around the head, and pivoted levers g, 9 and g carrying the said tools, respectively, all substantially as and for the purposes set forth.

In testimony whereof I have signed my name to this specification in the presence oi two snbscribin g witnesses.

ALBERT ED. BENTLEY.

\Vitnesses:

JrEORGE DAVIES, CHARLES A. DAVIES. 

